List of Famous people who died in 1991

John DeCuir was a Hollywood art director and production designer known for his elaborate set designs that were illustrated with his own watercolor paintings.

Mary Mussi, née Edgar, was a British writer of over 50 romance novels as Mary Howard, who also wrote over 10 gothic romance as Josephine Edgar. She is one of the two novelists to win three times the Romantic Novel of the Year Award by the Romantic Novelists' Association.

Magnus Rudolph Hestenes was an American mathematician best known for his contributions to calculus of variations and optimal control. As a pioneer in computer science, he devised the conjugate gradient method, published jointly with Eduard Stiefel.

Priscilla Cecilia Maria Reyntiens, The Lady Norman, CBE, JP was a London councillor, board member, and supporter of mental health and nursing institutions.

Alexandre Istrati was a Franco-Romanian painter. He won numerous prizes, including 1953 the Prix Kandinsky.

John Herrick McIntire was an American character actor who appeared in 65 theatrical films and many television series. McIntire is well known for having replaced Ward Bond, upon Bond's sudden death in November 1960, as the star of NBC's Wagon Train. He played Christopher Hale, the leader of the wagon train from early 1961 to the series' end in 1965. He also replaced Charles Bickford, upon Bickford's death in 1967, as ranch owner Clay Grainger on NBC's The Virginian for four seasons.

Boris Aleksandrovich Arbuzov, was a Russian and Soviet chemist and a representative of the Supreme Soviet of the Soviet Union of 7th, 8th, 9th, 10th and 11th convocations.